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Replacing the cmos battery on an acer 5520-5912

I need to replace the cmos battery for my Acer 5520-5912 and it appears to be soldered in. how can it be replaced?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: where is the cmos battery for an acer aspire 1690 laptop

Hi I have found you a service manual that should tell ya all. http://rapidshare.com/files/48828906/S.G_AS3010_5010.zip The BIOS in most lappy's are usually soldered I expect this to B the same. (I DL the manual to test link ..)

Posted on Aug 21, 2007

Draccula
  • 24 Answers

SOURCE: acer travelmate 2350 boot password

Do u know to use Soldering iron...if u know..remove the proccessor from socket then de solder the BIOS batterry and short that two terminals on mother board without connecting the power adapter and battery...do it and re solder the bios battery..this procedure will help u to recover from ur problem..if u dont know then do it with any technician.

Posted on Dec 10, 2007

  • 61 Answers

SOURCE: Bios Password Reset

The only idea I have is to find and disconnect the CMOS back-up battery after removing main battery and unplugging the AC adapter. That SHOULD clear the bios completely, wiping out the password, the date, and everything else.
I know this works on desktops, and most laptops, but no promises, and the cmos battery may not be easy to access.
You should probably leave the battery unhooked for at least 1-2 minutes to be sure it clears.

Hope this is some assistance!

Posted on Jan 18, 2008

  • 32 Answers

SOURCE: where can i find CMOS battery of my laptop ACER travelmate

Hello,
You will have to turn it upside down and start removing compartments untill you find it. (As you did not give me the model of the computer I can't tell you exactly where it is)
The CMOS battery is located on the motherboard and it looks like a large watch battery.

Details on changing it is here: http://www.smartcomputing.com/editorial/article.asp?article=articles/2004/w1510/32w10/32w10.asp&articleid=24031

Have a great Day!

Posted on Jan 28, 2009

  • 338 Answers

SOURCE: I can't find the cmos battery in my Acer TravelMate 512DX

you have got an older model, try this:

follow the instructions:



you will need:
a slim x-screw-driver
a sharp knife with a slim blade and
a cup or else for the screws, don't loose them!
a new c-mos bios battery model: CR-1220 (exchange it while your in there!)


you find c-mos battery and hdd under the keyboard!

- turn off the power, remove accu and charger cable, for static electricity is friendly fire
to your laptop now !

- open your screen to max. fold (angle of 180 degrees)

- look for removable plastic part near to left holder of screen
- carefully remove it
- also remove plastic panel right to it in the section between display holders
metal should be visible now
- carefully! remove keyboard, starting at the left side, continuing topside
as you won't be able to fully remove it, simply turn it over
- unscrew any screws holding the metal plate, remove it
- now you see: left the CPU plus cooler, top right middle the hdd still in an adapter attached
to the mainboard, at it's lower right the C-MOS battery (g
- turn loos these screws
- carefully remove the frame/adaptor holding the hdd
- unscrew again the adaptor
- seperate hd fram adaptor

... and gotcha!

be careful to get a proper notebook hd (samsung or such)
exchange CMOS-battery by chance
reattach new hd to frame, again carefully!

to reassamble: rewind the procedures
put everything back in place

replug, pray and turn on the lappie.


wish you luck.....

Posted on Jun 13, 2009

Testimonial: "Thanks for all of the information. The keyboard was destroyd during the removal process so we bought a new one instead."

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Is the cmos battery soldered to the motherboard on Acer Aspire 5336-2524


no, cmos batteries are not soldered to the motherboard nowadays

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How do i replace the cmos battery


any generic replacement CMOS battery with the same specifications and size measurement as the original battery will do, I am not to familiar with the battery used on your laptop, for it may be installed with retaining clips, it may be soldered to the main board, or via sockets with wires, if you are not to savvy with electronics soldering , have someone who knows how , to do it for you. Replacing cmos battery is actually easy once you have secured the replacement part. refer to your computer manual for the location of the cmos battery on your laptop.

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Cmos battery is usually a 3 V button battery, there are variety of different brands so you need to open and check it.
eBay: ACER ASPIRE 7741G 334G50 MS2309 CMOS BATTERY - 476
http://www.ebay.com.au/itm/ACER-ASPIRE-7741G-334G50-MS2309-CMOS-BATTERY-476-/161408573087?pt=AU_Components&hash=item2594b35e9f&_uhb=1
2035, 2032 can be bought from any super market or hardware store. Need to open the PC, locate the battery, which is normally clipped to the mother board. Use a small screw driver and lift out. If battery is soldered to the mother board then need to access under the board and de-solder carefully without damaging the tracks.

2032: CR2032 CR 2032 5004LC 3V 3 Volt button cell lithium battery for CMOS
http://www.ebay.com.au/itm/CR2032-CR-2032-5004LC-3V-3-Volt-button-cell-lithium-battery-for-CMOS-/271586313364?pt=AU_Electronics_Batteries_Chargers&hash=item3f3bce4494&_uhb=1
solder types: SONY CR2032 3V SOLDER TAB Pin battery with soldering tag for CMOS Bios PLC new
http://www.ebay.com.au/itm/SONY-CR2032-3V-SOLDER-TAB-Pin-battery-with-soldering-tag-for-CMOS-Bios-PLC-new-/271570170168?pt=US_Single_Use_Batteries&hash=item3f3ad7f138&_uhb=1

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Bl51 motherboard


All laptops have a CMOS, or "Complementary Metal Oxide Semiconductor," battery.
The main purpose for the CMOS battery is to keep the system time, date and BIOS settings even if the computer is turned off or the main battery dies.
Individual Acer Aspire laptop models differ somewhat, but the general steps are the same when replacing a dead CMOS battery.Preparation

Read through the owner's manual for your particular Acer Aspire laptop to determine what kind of CMOS battery you need.
Purchase the battery through Acer or a local or online computer parts dealer.
Turn the laptop off and unplug it.
Also unplug any external hard drives, cameras or other external devices.
Turn the laptop over (bottom facing up), then touch something metal to remove static charge.
Removal
Remove the Phillips screws that secure the motherboard cover (refer to your owner's manual if necessary), then release the cover from the clips on the bottom of the plastic casing.
Lay the cover aside, then locate the CMOS battery cable on the right side of the motherboard. Unplug the cable, then remove the battery.
Installation
Plug the new CMOS battery cable into the motherboard.
Slide the battery partially under the laptop casing to hold it in place, then align the cover with the slots on the bottom of the laptop housing.
Replace the screws, then turn the laptop back over.
Settings
Plug the laptop in and turn it on.
Enter your BIOS (usually by pressing "F1," "F2," F10" or the "Delete" key) before the operating system loads.
Follow the BIOS prompts or refer to your Acer Aspire owner's manual to reset your time, date and desired system settings.
BIOS Reset
Any time the CMOS battery is unplugged for more than a few seconds, your BIOS will be reset to the default manufacturer settings.
If you make any changes to the BIOS that cause problems with your Acer Aspire, unplug the CMOS battery for 3-5 seconds to correct the problem.
http://support.acer.com/us/en/default.aspx


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turn computer over you will see 3 removeable panels not sure wich panel its under so look care fully for a watch type battery make sure its not the type thats soldered in acer dont usually do this. remove battery very carfully use plastic tweezers then buy new battery, size and type on battery. any retail shop that sells battery.
then replace.
hope this helps.

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Do u know to use Soldering iron...if u know..remove the proccessor from socket then de solder the BIOS batterry and short that two terminals on mother board without connecting the power adapter and battery...do it and re solder the bios battery..this procedure will help u to recover from ur problem..if u dont know then do it with any technician.

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